Search Results for the EPA National Library Catalog

Items Found: 860
Showing: Items 301 - 350
Your Search: (SUBJECT=Variations)


 
 
 
PREV 1 ... 2 3 4 5 6 7 8 9 10 11 12 ... 18 NEXT
Select Item Title Year Published
Eutrophication as a Problem in the Finger Lakes. 1972
Eutrophication of Water Resources of New York State. Observations on Nutrient Limitation on Summer Phytoplankton in Cayuga Lake, 1967 and 1968. 1970
Evaluating indirect sources / 1975
Evaluation and Abatement of Noise from Aircraft Auxiliary Power Units and Airport Ground Power Units. 1980
Evaluation of a Deterministic Model for Predicting Water Yields from Small Agricultural Watersheds in Virginia. 1972
Evaluation of a hydrosalinity model of irrigation return flow water quality in the Mesilla Valley, New Mexico / 1979
Evaluation of a System for the Imposition of Plant Water Stress. 1985
Evaluation of Alternative Service Improvements. 1969
Evaluation of Dispersed Pollutional Loads from Urban Areas. 1970
Evaluation of Environmental Alterations by Thermal Loading and Acid Pollution in the Cooling Reservoir of a Steam-Electric Station. 1970
Evaluation of Long-Term Sulfur Deposition Models. 1989
Evaluation of Shavers Fork Mine Seals. 1971
Evaluation of the APRAC-1A Urban Diffusion Model for Carbon Monoxide. 1972
Evaluation of the Kriging Method to Predict 7-h Seasonal Mean Ozone Concentrations for Estimating Crop Losses (Journal Version). 1987
Evaluation of the Multiple Source Gaussian Plume Diffusion Model - Phase II. 1975
Evaluation of various alternative ambient ozone standards based on crop yield loss data, {microfiche} / by David T. Tingey, William E. Hogsett, E. Henry Lee, Andrew A. Herstrom and Sandra H. Azevedo. 1990
Evaluation of Wetland Development and Waterbird Response at Elk Creek Wildlife Management Area, Lake Mills, Iowa, 1961 to 1990. 1991
Evolution of the Nocturnal Inversion Layer at an Urban and Nonurban Location. 1985
Executive Summary: Winter and Spring Water Quality Survey of Acid Mine Drainage Neutralization Plants. 1975
Existing visibility levels in the United States : isopleth maps of visibility in suburban/nonurban area during 1974-76 / 1979
Exposure Assessment Approaches to Evaluate Respiratory Health Effects of Particulate Matter and Nitrogen Dioxide. 1991
Exposure of high risk subpopulations to particles : final report (APM-21)/ 2003
Exposures to Acidic Aerosols. 1989
Fargo-Moorhead Metropolitan Area Air Pollutant Emission Inventory Report. 1970
Fate and biological effects of cadmium introduced into channel microcosms / 1979
Fate and Effects of Crude Oil Spilled on Subarctic Permafrost Terrain in Interior Alaska. 1980
Feasibility of including regional and temporal VOC emissions estimates in the EPA emissions trends report / 1990
Feasibility of overland flow for treatment of raw domestic wastewater / 1974
Feasibility of overland-flow treatment of feedlot runoff / 1974
Field Calibration of Soil Core Microcosms for Evaluating Fate and Effects of Genetically Engineered Microorganisms in Terrestrial Ecosystems. 1991
Field evaluation of new air pollution monitoring systems : the Los Angeles study / 1971
Field Sampling in Estuaries: The Relationship of Scale to Variability. 1987
Field Testing and Adaptation of a Methodology to Measure 'In-Stream' Values in the Tongue River, Northern Great Plains (NGP) Region - Executive Summary. 1978
Field Testing and Adaptation of a Methodology to Measure 'In-Stream' Values in the Tongue River, Northern Great Plains (NGP) Region. 1978
Field Verification Program (Aquatic Disposal): Synthesis of Research Results: Applicability and Field Verification of Predictive Methodologies for Aquatic Dredged Material Disposal. 1988
Fish kills caused by pollution : fifteen year summary, 1961-1975 / 1979
Fish kills caused by pollution in 1975 Sixteenth annual report (Report for 1 Jan 75 to 31 Dec 75) [MICROFICHE]. 1977
Flow equalization. 1974
Flow Regime, Juvenile Abundance, and the Assemblage Structure of Stream Fishes. 1985
Fluctuations in Nitrate Concentrations Utilized as an Assessment of Agricultural Contamination to an Aquifer of a Semiarid Climatic Region. 1972
Fluoride in Glacier National Park : a field investigation. 1973
Flux Measurements of Ozone and Nitric Acid at Coastal and Mid-Continental Sites. 1995
Franklin County, Ohio air pollutant emission inventory 1970
Frequency Distributions for Durations and Volumes of Rainfalls in the Eastern United States in Relation to Acidic Precipitation. 1984
General Circulation Model Output for Forest Climate Change Research and Applications. 1994
Generalized Water Quality Model for Eutrophic Lakes and Reservoirs. 1974
Genetic Variation in Clonal Vertebrates Detected by Simple-Sequence DNA Fingerprinting. 1990
Great Lakes Hydrology by Months, 1946-1965. 1972
Great Lakes Water Levels: Shoreline Dilemmas. Report on a Colloquium Sponsored by the Water Science and Technology Board, March 17-18, 1988. Colloquium 4. 1989
Groundwater Contamination by Trace Level Organics from a Rapid Infiltration Site. 1981
PREV 1 ... 2 3 4 5 6 7 8 9 10 11 12 ... 18 NEXT

Save, Print or Email Selected Records